{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2024,8,11]],"date-time":"2024-08-11T11:08:07Z","timestamp":1723374487442},"reference-count":32,"publisher":"MDPI AG","issue":"10","license":[{"start":{"date-parts":[[2018,10,16]],"date-time":"2018-10-16T00:00:00Z","timestamp":1539648000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"the National Key R&D Program of China","award":["2017YFB0902700","2017YBF0902702","SWU118030"]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"SF6 decomposition components detection is a key technology to evaluate and diagnose the insulation status of SF6-insulated equipment online, especially when insulation defects-induced discharge occurs in equipment. In order to detect the type and concentration of SF6 decomposition components, a Ni-modified carbon nanotube (Ni-CNT) gas sensor has been prepared to analyze its gas sensitivity and selectivity to SF6 decomposition components based on an experimental and density functional theory (DFT) theoretical study. Experimental results show that a Ni-CNT gas sensor presents an outstanding gas sensing property according to the significant change of conductivity during the gas molecule adsorption. The conductivity increases in the following order: H2S > SOF2 > SO2 > SO2F2. The limit of detection of the Ni-CNT gas sensor reaches 1 ppm. In addition, the excellent recovery property of the Ni-CNT gas sensor makes it easy to be widely used. A DFT theoretical study was applied to analyze the influence mechanism of Ni modification on SF6 decomposition components detection. In summary, the Ni-CNT gas sensor prepared in this study can be an effective way to evaluate and diagnose the insulation status of SF6-insulated equipment online.<\/jats:p>","DOI":"10.3390\/s18103493","type":"journal-article","created":{"date-parts":[[2018,10,17]],"date-time":"2018-10-17T14:22:54Z","timestamp":1539786174000},"page":"3493","source":"Crossref","is-referenced-by-count":27,"title":["Ni-CNT Chemical Sensor for SF6 Decomposition Components Detection: A Combined Experimental and Theoretical Study"],"prefix":"10.3390","volume":"18","author":[{"ORCID":"http:\/\/orcid.org\/0000-0003-1424-7082","authenticated-orcid":false,"given":"Yingang","family":"Gui","sequence":"first","affiliation":[{"name":"College of Engineering and Technology, Southwest University, Chongqing 400715, China"}]},{"ORCID":"http:\/\/orcid.org\/0000-0001-5872-2039","authenticated-orcid":false,"given":"Xiaoxing","family":"Zhang","sequence":"additional","affiliation":[{"name":"School of Electrical Engineering, Wuhan University, Wuhan 430072, China"}]},{"given":"Peigeng","family":"Lv","sequence":"additional","affiliation":[{"name":"State Grid Chongqing Shiqu Power Supply Company, Chongqing 400015, China"}]},{"given":"Shan","family":"Wang","sequence":"additional","affiliation":[{"name":"State Grid Chongqing Shiqu Power Supply Company, Chongqing 400015, China"}]},{"ORCID":"http:\/\/orcid.org\/0000-0002-5572-2671","authenticated-orcid":false,"given":"Chao","family":"Tang","sequence":"additional","affiliation":[{"name":"College of Engineering and Technology, Southwest University, Chongqing 400715, China"}]},{"ORCID":"http:\/\/orcid.org\/0000-0002-3958-8767","authenticated-orcid":false,"given":"Qu","family":"Zhou","sequence":"additional","affiliation":[{"name":"College of Engineering and Technology, Southwest University, Chongqing 400715, China"}]}],"member":"1968","published-online":{"date-parts":[[2018,10,16]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Tang, J., Xu, Z.R., Zhang, X.X., and Sun, C.X. 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